This is suitable for self learning or classroom lesson presentation.
Please refer to the original page at Geogebra tube for background information and details or to download if you need :https://www.geogebra.org/b/rSjV8S8q#material/pjUnFHr8
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<iframe scrolling="no" title="Cash Register" src="https://www.geogebra.org/material/iframe/id/XrcJzWQV/width/1339/height/677/border/888888/smb/false/stb/false/stbh/false/ai/false/asb/false/sri/false/rc/false/ld/false/sdz/false/ctl/false" width="1339px" height="677px" style="border:0px;"> </iframe>
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